The Evolution of Mass Outflow during Massive Star Formation

大质量恒星形成过程中质量流出的演化

• 批准号: 0908901
• 负责人: Peter Hofner
• 金额: $ 42.98万
• 依托单位: New Mexico Institute of Mining and Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0908901&HistoricalAwards=false
• 关键词: Evolution; Mass; Outflow; during; Massive

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).Drs. Peter Hoffner and Michelle Cheech-Eakman of the New Mexico Institute of Mining and Technology will undertake an observational study of stellar winds, jets, and molecular outflows in massive stars. Astronomers have long known that stars with masses greater than 8 solar masses lose material during most, if not all, of their lives. This mass loss is particularly important during the protostar phase, when the stars are being formed. This research team will obtain imaging and spectroscopy at several wavelengths to increase the available data about flows from massive young stars, to determine the physical process which launch and drive the outflows, and to establish an evolutionary sequence for massive protostars based on the properties of the flows.This project is expected to have a broad impact for the study of jets and flows in many different contexts, including the formation of low-mass stars and planets, as well as the jets seen in active galactic nuclei. Data products from this project may also guide future work with the Atacama Large Millimeter Array in Chile and the Expanded Very Large Array in New Mexico. The research team will also include two graduate students and several undergraduate students. The project's techniques and results will be incorporated into astrophysics courses at New Mexico Tech.

该奖项是根据2009年《美国回收与再投资法》（公法111-5）.DRS资助的。新墨西哥州采矿技术学院的彼得·霍夫纳（Peter Hoffner）和米歇尔·乔希（Michelle Cheech-eakman）将对大型恒星中的恒星风，喷气机和分子流出进行观察性研究。 长期以来，天文学家知道，质量大于8太阳能的星星在大多数（如果不是全部）一生中都会失去物质。 在形成恒星时，在原始阶段，这种质量损失尤为重要。 This research team will obtain imaging and spectroscopy at several wavelengths to increase the available data about flows from massive young stars, to determine the physical process which launch and drive the outflows, and to establish an evolutionary sequence for massive protostars based on the properties of the flows.This project is expected to have a broad impact for the study of jets and flows in many different contexts, including the formation of low-mass stars and planets, as well as the jets seen in active银河核。 该项目的数据产品还可以指导智利的Atacama大毫米阵列以及新墨西哥州扩大的大型阵列的未来工作。研究团队还将包括两名研究生和几名本科生。 该项目的技术和结果将纳入新墨西哥理工学院的天体物理学课程中。